ClassID:

152919

F16L15/004 - CPC Classification

Classification description:

Screw-threaded joints ; Forms of screw-threads for such joints with conical threads with axial sealings having at least one plastically deformable sealing surface

Recent Application in this class:
#1
20250347179
2025-11-13

WEDGE THREAD CONNECTION FOR TUBULAR GOODS

#2
20250109809
2025-04-03

Coupling Assembly and Fluid Line Connection

#3
20240209695
2024-06-27

Connection device for tubular elements

#4
20240011562
2024-01-11

SEAL SYSTEM FOR ANNULAR COMPONENTS

#5
20230088330
2023-03-23

WEDGE THREAD CONNECTION FOR TUBULAR GOODS

#6
20230082305
2023-03-16

Leak-resistant threaded pipe connection

#7
20230027183
2023-01-26

Threaded connection partially in a self-locking engagement with an external shoulder capable to resist elevated torque

#8
20220243845
2022-08-04

THREADED JOINT WITH SHOULDER PRODUCED BY ADDITIVE MANUFACTURING

#9
20220220813
2022-07-14

Threaded connection for steel pipe

#10
20220127911
2022-04-28

Leak-resistant threaded pipe connection

#11
20220065371
2022-03-03

THREADED CONNECTION FOR STEEL PIPE

#12
20210293095
2021-09-23

Testing and validation of connectors for subsea intervention riser systems

#13
20210222805
2021-07-22

Fluid connector

#14
20200370682
2020-11-26

Torque shoulder of a premium connection

#15
20200325734
2020-10-15

Threaded connection partially in a self-locking engagement

#16
20200208760
2020-07-02

CONNECTION HAVING BALANCED PIN AND BOX FACE THICKNESS

#17
20200200304
2020-06-25

Threaded connection for steel pipes

#18
20200200303
2020-06-25

Method for making a threaded connection for pipes, such as oil and gas pipes

#19
20200056431
2020-02-20

Pressure test plug for improved tubular threaded component

#20
20200048970
2020-02-13

PRESSURE BALANCING MECHANISM FOR A CONNECTOR

#21
20190330930
2019-10-31

Threaded connection for steel pipe

#22
20190330929
2019-10-31

Wedge thread connection for tubular goods

#23
20190040978
2019-02-07

Threaded joint for steel pipes

#24
20190032820
2019-01-31

Threaded joint for steel pipe

#25
20180356014
2018-12-13

Compression resistant threaded connection

#26
20180259098
2018-09-13

Method for making a threaded connection for pipes, such as oil and gas pipes

#27
20180252342
2018-09-06

Torque shoulder of a premium connection

#28
20180223606
2018-08-09

Threaded tubular connection

#29
20180106115
2018-04-19

Connector for steel catenary risers

#30
20180058152
2018-03-01

Sealed pipe joint

#31
20180051835
2018-02-22

Threaded connection

#32
20170350619
2017-12-07

Hot water storage device

#33
20170321826
2017-11-09

SINGLE LEAD WEDGETHREAD CONNECTION

#34
20170298699
2017-10-19

Dynamic riser mechanical connector

#35
20170198839
2017-07-13

Connecting oil country tubular goods

#36
20170159853
2017-06-08

Threaded connection

#37
20170108151
2017-04-20

Threaded joint for steel pipes

#38
20170101830
2017-04-13

Threaded joint for steel pipes

#39
20160319966
2016-11-03

Threaded joint for heavy-walled oil country tubular goods

#40
20160244883
2016-08-25

Abutment for a tubular component overlaid with a metallic composite deposit and method for making it

#41
20160230119
2016-08-11

Threaded joint for pipes

#42
20160208962
2016-07-21

Threaded connection for steel pipe

#43
20160208562
2016-07-21

Connecting element for a tubular component overlaid with a metallic composite deposit and method of obtaining such element

#44
20160130884
2016-05-12

Threaded joint for oil country tubular goods

#45
20160123091
2016-05-05

Threaded joint for oil country tubular goods

#46
20150377391
2015-12-31

Threaded joint for pipes

#47
20150368987
2015-12-24

Threaded joint for steel pipes

#48
20150285009
2015-10-08

Expandable metal-to-metal seal connection

#49
20150191980
2015-07-09

Sealed threaded joint for tubing pipes

#50
20150167869
2015-06-18

Threaded connection

#51
20150145247
2015-05-28

Alignment guide feature for metal to metal seal protection on mechanical connections and couplings

#52
20150139832
2015-05-21

Seal assembly for a downhole device

#53
20150130182
2015-05-14

Threaded joint for steel pipe

#54
20150061287
2015-03-05

Threaded joint for pipes

#55
20150001841
2015-01-01

Threaded joint for pipes

#56
20140367119
2014-12-18

Threaded joint with low tightening torque

#57
20140361530
2014-12-11

Threaded tubular component and method for coating such a threaded tubular component

#58
20140352837
2014-12-04

Box protector for a threaded joint for pipes

#59
20140300104
2014-10-09

Pipe connection

#60
20140284919
2014-09-25

Tubular threaded joint having improved high torque performance

#61
20140265320
2014-09-18

Sealed pipe joint

#62
20140203556
2014-07-24

Assembly for producing a threaded joint for the drilling and operation of hydrocarbon wells, and resulting threaded joint

#63
20140070526
2014-03-13

Protected integral metal to metal seal

#64
20140054891
2014-02-27

Coupling for connecting tubular elements for bottom-hole assemblies

#65
20140054890
2014-02-27

Elliptical undercut shoulder for specialty pipe connections

#66
20130333790
2013-12-19

Process for coating a threaded tubular component, threaded tubular component and resulting connection

#67
20130277961
2013-10-24

Tubular threaded joint having improved low temperature performance

#68
20130181442
2013-07-18

Threaded joint for pipe

#69
20130119657
2013-05-16

Threaded pipe connector

#70
20130093185
2013-04-18

Threaded connection and process for obtaining it

#71
20130069364
2013-03-21

Threaded connection

#72
20130033035
2013-02-07

Pipe Connector Device

#73
20130020072
2013-01-24

Threaded pipe connection with a pressure energized flex-seal

#74
20130015657
2013-01-17

Tubular threaded connection

#75
20120325361
2012-12-27

Expansible threaded joint and method for making same

#76
20120312527
2012-12-13

Galling-resistant threaded tubular component, and process for coating said component

#77
20120298249
2012-11-29

TUBULAR CONNECTION AND ASSOCIATED THREAD FORM

#78
20120169048
2012-07-05

Galling-resistant threaded tubular component and process for coating said component

#79
20120119489
2012-05-17

TIGHTLY THREADED JOINT FOR OIL FIELD PIPES

#80
20120119488
2012-05-17

Seal between pipe sections

#81
20120098256
2012-04-26

Threaded connections and methods

#82
20120074692
2012-03-29

Connecting oil country tubular goods

#83
20120067127
2012-03-22

Method of evaluating fastening state of threaded joint of pipes or tubes, method for fastening threaded joint of pipes or tubes, and apparatus for evaluating fastening state of threaded joint of pipes or tubes

#84
20120043756
2012-02-23

Tubular threaded connection

#85
20120032435
2012-02-09

Threaded joint for tubes, pipes and the like

#86
20110241340
2011-10-06

Threaded joint for steel pipes

#87
20110227338
2011-09-22

SEALED PIPE JOINT

#88
20110148103
2011-06-23

Device for protecting a female end of a threaded tubular connection component, having an anti-unscrewing brake

#89
20110133449
2011-06-09

Threaded joint sealed to internal and external pressures

#90
20110101684
2011-05-05

Threaded Pipe Connection with a Pressure Energized Flex Seal

#91
20110042946
2011-02-24

Threaded joint with high radial loads and differentially treated surfaces

#92
20110041581
2011-02-24

Method for improving fatigue resistance of a threaded joint

#93
20110025051
2011-02-03

Threaded joint for steel pipes

#94
20110012348
2011-01-20

Highly-tight threaded joint

#95
20100301603
2010-12-02

Threaded connection comprising at least one threaded element with an end lip for a metal tube

#96
20100301600
2010-12-02

Threaded joint for pipes

#97
20100283239
2010-11-11

Sealed threaded tubular connection which is resistant to successive pressure loads

#98
20100270793
2010-10-28

Threaded joint for steel pipes

#99
20100243089
2010-09-30

Working fluid feeding device

#100
20100181763
2010-07-22

Wedge thread with torque shoulder

#101
20100171310
2010-07-08

Sealed tubular joint with plastic expansion and at least one inclined surface

#102
20100156099
2010-06-24

Threads with perturbations

#103
20100107766
2010-05-06

Ultrasonic testing method of threaded joint of pipes or tubes

#104
20100102553
2010-04-29

Threaded tubular connection which is leak-proof under internal and external successive pressure loads

#105
20100078936
2010-04-01

Threaded joint for steel pipes

#106
20100045033
2010-02-25

Threaded pipe connection

#107
20090282921
2009-11-19

Method for evaluating fastening state of threaded joint of pipes or tubes and method for fastening threaded joint of pipes or tubes using the method

#108
20090250927
2009-10-08

Threaded pipe connector

#109
20090200798
2009-08-13

Tubular threaded joint

#110
20090033087
2009-02-05

Threaded connections with high and low friction coatings

#111
20080319720
2008-12-25

Connection fatigue index analysis for threaded connection

#112
20080296894
2008-12-04

Oilfield threaded connections

#113
20080265575
2008-10-30

Liquid and gas tight threaded tubular connection

#114
20080265569
2008-10-30

Threaded joint for pipes provided with seal

#115
20080238094
2008-10-02

Oilfield Threaded Connection

#116
20080191479
2008-08-14

Screw Joint for Oil Well Tubing

#117
20080054633
2008-03-06

Scalloped wedge threads

#118
20080012322
2008-01-17

Pseudo two-step connection

#119
20080007060
2008-01-10

Coupling tubulars

#120
20070236015
2007-10-11

Threaded joint for steel pipes

#121
20070236014
2007-10-11

Mismatched flanks for a wedge thread

#122
20070228730
2007-10-04

Threaded connection with variable flank angles

#123
20070228729
2007-10-04

TUBULAR GOODS WITH THREADED INTEGRAL JOINT CONNECTIONS

#124
20070216160
2007-09-20

Threads with perturbations

#125
20070176424
2007-08-02

Preloaded Tubular Connector

#126
20070176423
2007-08-02

Wedge thread connections having a clearance gap volume

#127
20070176422
2007-08-02

Two hermetic threaded tubular joints

#128
20070158943
2007-07-12

Threaded connection with perturbed flanks

#129
20070132239
2007-06-14

Threaded connection with wedge segments

#130
20070132237
2007-06-14

Helical groove for a tubular connection

#131
20070132236
2007-06-14

Sealed tubular joint comprising local and initial added thickness(es) by means of plastic expansion

#132
20070102927
2007-05-10

Production by plastic expansion of a sealed tubular joint with inclined abutting surface(s)

#133
20070095414
2007-05-03

Working fluid feeding device

#134
20070063517
2007-03-22

Threaded pipe connector

#135
20070024053
2007-02-01

Mid-seal for expandable connections

#136
20060273586
2006-12-07

Coupled connection with an externally supported pin nose seal

#137
20060261595
2006-11-23

Threaded tubular connection with progressive axial thread interference

#138
20060255591
2006-11-16

Treating method and design method for tubular connections

#139
20060208490
2006-09-21

Threaded ductwork

#140
20060157982
2006-07-20

Pipe connection

#141
20060145480
2006-07-06

Floating wedge thread for tubular connection

#142
20060145477
2006-07-06

Threads with perturbations

#143
20060145476
2006-07-06

Pseudo two-step connection

#144
20060087448
2006-04-27

Marking of pipe joints

#145
20060087119
2006-04-27

Expandable threaded connection

#146
20060071474
2006-04-06

Threaded connection for drill pipes

#147
20060071473
2006-04-06

Helical groove for a tubular connection

#148
20060006648
2006-01-12

Tubular goods with threaded integral joint connections

#149
20050248153
2005-11-10

Threaded joint for steel pipes

#150
20050212290
2005-09-29

Threaded tubular joint comprising sealing surfaces

#151
20050172472
2005-08-11

Sealed tubular joint with plastic expansion and at least one inclined surface

#152
20050118364
2005-06-02

Tubular member having an anti-galling coating

#153
20050116468
2005-06-02

Threaded connectors for axial alignment of tubular components, and method of installing pipe sections employing such connectors

#154
20050073147
2005-04-07

Casing joints

#155
20050045240
2005-03-03

Methods for protecting a threaded portion of a tubular member